3-Bromo-5-(bromomethyl)-4-(difluoromethyl)pyridine-2-carboxylic acid
3-Bromo-5-(bromomethyl)-2-(difluoromethyl)pyridine-4-carboxylic acid
3-Bromo-4-(bromomethyl)-6-(difluoromethyl)pyridine-2-carboxylic acid
2-Bromo-5-(difluoromethyl)-3-methoxypyridine-6-acetonitrile